Automatically-opening switch



l l Nf KRUMP AUTOMATICALLY OPENING SWITCH 3 Sheets-Sheet 1 Fld Dec. 26, 1922 BM/@Mw VW Oct. 23, 1923. 1,471,490

N. KRUMP lAUTOMATICALLY OPENING SWITCH Filed Dec. 2e, 1922 sheets-sheet 2 wwf mw, www, Q

i proaching the open end ofthe switch, andV of associatedparts.. showing the wheels of Patented Uct. 23, 1923. v

uur'v err NIC KRUMP, or CHICAGO, ILLINOIS.

I i vin.A

AUToiraTIcALIiY-OIENING SWITCH'.

` AppIcation filed December 26, 1922." Serial No. 608,944.

To all 'whom t may concern.'

Be it known that I, NIC KRUMI, a citizen of the United States, and a resident of Chi` cago, in the county of Cook and VState of v side thereof through a door or other open-V ing which is, at times, closed by a sliding door.

Among the objects of the invention is to obtain a switch which will be automatically operated bysaid door, to-open and permit the door to be closed; to lobtain a switch of thev character namedwhich is simple in construction, containing few parts. easily installed, not liable to become broken or out of rdergfto obtain a-switch which will, when open, be provided with means to prevent a trolley approaching the switch at the open end thereof 'from becoming de-railed; and to obtain a switch which is easily operated, manually, to close it. A A

In the drawings referred to Fig. l is a top plan view ot the rails of the switch and of the rails approaching the switch, showing, in cross section, a vertical member at one end of the switch.

Fig. 2 is a side elevationv of the switch and ofthe rails approachingit-` f Fig. 3 is a "plan View on line 3-3 of Fig.

2, viewed as indicated by arrows.

Fig. 4 is a view of the switchin an open position, ,on line lf-4 of Fig. 2, viewed as indicated by arrows.A i

Fig. iis a top plan view of the rails apa trolley on said rails.

' Fig. G is an elevation of the several parts illustrated in Fig.

Figj? 'is av si Ale elevation of members (also illustrated in Fig. 2), in position unlocking the switch from a closedposition.

Fig. 8 is an end elevation of Jthe several' member vwhich are" illustrated in Fig. 7.`

' IFig. 9 is a side elevation or" the Vunlocking This invention'relates to an automatically members of the switch, at the. opposite end thereof from that which is illustrated in Figs. 7 and 8; and

Fig.A 10 is a top plan View ofthe several g, Lauree parts which are illustrated in Fig. -7,.showlng the cable by which the switch is opened when unlocked from its closed position.v

Arreference character applied to designate va given part indicates' said` part throughout the several figuresof the draw,- Ings wherever the sameappe'ars. i

A, A represents Vsuspended rails appreaching the switch4 at the pivoted end thereof, and B, B', railsapproaching said switch at the'opposite end. X, X', Y, Y', indicate trolley wheels on said rails. Crepresents a chair which is-arranged to support the ends of rails A, A,and also the pivoted en-d of the switch, and D represents a chair at the opposite Vend of the switch, which supports vsaid end when the switch 'is closed, and

also'supports the endsfot rails 13,134. E, E', represent'fthe tracks ofi-the switch, Awhich consist, as represented, ott a singlerail which is bent, (as at 6),.'so thatl the remainder of the rail forms parallel tracksV or rails.` The' ends of the rails A, A are bevelled to correspond with vthe bend e adjacent thereto. -,F representsa slot in chair C, and G a vertically extending bolt which is movable longitudinally in said slot. H, h, represents a combinedrstandard and base', (illustrated. as integral). The bolt vGr is secured' lin the lower end of standard and base H h, and g represents a washer on bolt'G, between the head 'of said bolt and the under side of chair Cf Base'h'is illustrated as resting on vthe flanges of railsE, E', and astirmly secured Yto saidflanges by baril, boltz'l and nut 11 J d,

represent pulleys which are loosely mounted on 'the' upper end of standard H, in a 'horizontal plane, and resting on the'- table or plate which-is' rigidly secured on said standard; hf'represents a bolt vwhich is rigidlysecured in'plateHQ and jrepresentsa curved slot inpulleys' J, J, in .which :said bolt-jk vmay move when said pulleys are turnedfon standardA H, rsaid yturning being limited by the length i-off'said slot.' the'V Vforegoing described arrangement tn rotatory movement-of the pulleys J J may occur before the rotation ofthepulleys produces corresponding rotation of the standard H,'base gira L and the rails E, E', formingl the switch. represents a hub to the upper one et the pulleys J J, and l represents an arm which .is secured to hub j, j', represents project-ions on the lower one of pulleys d el, and 71* represents a roller which is rotatably mounted between the projections j, y L represents av bell crank lever which is pivotally mounted at Z on projection L ot standard H. The upper edge ot the horizontal meinber of bell crank L is in the path of movement of pulley 7e whenk the lever l and pulleys J el, are turned on standard H, as by a sliding door coming in contact with said lever, and thereby said pulley 7c is orced on to said horizontal member ot the bell crank to force said horizontal member down and turn the bell crank on its pivot. rllhe lower end of the vertical member ot the bell crank is thereby moved towards vthe right, as viewed in Fig. 2, and to said lower is attached the rod M, which is, at its other end connected to bolt' m. The bolt m is longitudinally movable in abutment m ot base M. The normal position ot bolt m is Aillustrated in F ig. 2, in whichv positionv it is yeldingly held by spring m. When said bolt is in said normal position the forward end thereof is in a recess-provided therefor in standard N on chair D. Said bolt therefore normally' holds the switch closed,and until by the 'foregoing described angular movement ot lever K and pulleys J d, the pulley is forced on to bellcrank L,'to turn said bell crank on its pivot, to release the switch troni its locked condition, whereupon the switch is automatically opened by the means about to be described. 0 represents a standard` which is secured on base M, and O is a cable or cord which is attached to said standard and eX- tended to'and over the pulleyGf and to the weight 0', (see Fig. 10). P represents a standard which is rotatably mounted on chair l)1 and is provided with the horizontal. member p at its upper end. l represents a forked member which is also mounted on standard l), and 7? is thev recess in said yiiorked member. Villien the switch is closed the standard O is in recess 29', and the horizontal member y? is between and parallel to the rails of the track, so that a trolley may travel along said track. ils the switch is opened the standard, or bolt Q passes out of recess' ya", and in so deine turns standard 'p approximately an annular' distance ot' ninety degrees. thereby turning horizontal.

member 79' at ri g'ht an ales to the'tracks.- causine said member to be an obstructionV preventing' a` trolley to travel. into the space lett open by the opening ot the switch, (see Figs. 5 uand' 6)'. p, 5, represents a stop to limit the turning' ofthe standarl as the standard or bolt 0 leaves the recess 7)', in Jforked member P. rcpresentsa cable or cord which extends around the pulleys J. d,

inviano and to a position where it may be grasped te manually turn the switch from an open to a closed position. R represents a rod by; means of which the chair C is supported, and lt a. rod by means ot which chair l) is supported.

ln the opening of the switch the side ot rail E is torced against the end of rail fr and thereby the base member it is 'forced outward, to move the bolt G' longitudinally in slot F, and when the switch is closed by means ot cable'or cord Q' said base and the curved end e oit the switch rail is drawn back to close contact with the ends ot rails A, A. When the switch is closed the bolt m automatically locks it in a closed position.

l claim:

l. ln an automatically opening switch, means to lock said switch in a closed position, in combination withl means to unlock said switch by the movement of a door, said means to unlock comprising a lever in the path of movement ot said door,and means to automatically open said switch when unlocked.

2. ln an automatically opening switch, a bolt arranged to be yieldingly held in a normal position to lock said switch in a closed position, means to retract said spring unlock said switch, said unlockingmeans comprising a standard, pulleys loosely mounted on said standard, means to linn the annular movement Yoit said pulleys on said standard, lever extending into the path ot movement of a door, in combination with a bell crank pivotally mounted on said y standard and tached to the locking bolt, one member oit said bell crank in the path of movement ot said pulleys, andmeans to manually close said switch.

3. ln an automatically opening switch, a bolt yieldinpjly held in a normal position to lock said switch in a closed position, means to retract said bolt to unlock said switch said nieans to retract comprising a standard a pulley loosely mounted on said standard. means to limit the angular movement of said pulley on said standard, a lever rixe'idly attached to said pulley and er; .ending4 into the path of movement otv a door, a bell crank pivotally mounted adjacent to the end of one of its members and on said standard, a member on said pulley arranged to `move onto the pivoted member oit said bell crank b v the limitedang'ular movement of said pulley., and a connection between said bell crank and said locking bolt. in combination with a cable extending Varound said pulley, a` standard atV the tree zontal member into and out of position obbetween the rails adjacent to said free end structing vsaid rails adjacent to said free of said switch2 and provided With a, forked end of the switch. member, said standard on-sadswtch arranged to leave and enter the recess formed N IC KRUMP. by the fork of said forked membenas said In the presence of switch opens and closes, to turn sind hor- CHARLES TURNER BROWN,

B. S. BROWN. 

